Investigation of Nonionic Surfactant Dynol-604 Based Reverse Microemulsions Formed in Supercritical Carbon Dioxide
Langmuir2001Vol. 17(26), pp. 8040–8043
Citations Over TimeTop 10% of 2001 papers
Abstract
The solubility of Dynol-604 (a surfactant) in supercritical (SC) CO2 and the phase behavior of the CO2/water/Dynol-604 system were studied at different temperatures and pressures. The results showed that the solubility of the surfactant in SC CO2 is high and one-phase water-in-CO2 microemulsions could be formed although Dynol-604 is a nonfluorous and nonsiloxane nonionic surfactant. The solvatochromic probe studies and the UV spectrum of lysozyme in the supercritical CO2/water/Dynol-604 system further proved the existence of a water domain in the supercritical CO2 microemulsions.
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